Geelong defender Jake Kolodjashnij medically retires after concussion concerns

Geelong premiership defender Jake Kolodjashnij has been medically retired because of concussion, following controversy over a waiver in his club contract concerning future brain trauma. Kolodjashnij was identified as the player who signed the secret waiver in 2024. The agreement required him to accept legal responsibility for future brain trauma so that he could continue playing for Geelong.

The Geelong Football Club was fined $140,000 by the Australian Football League last month for failing to notify the league officially about the waiver. The penalty included a $100,000 fine and a suspended $40,000 sanction connected with an earlier investigation into the club’s third-party agreements. Kolodjashnij, 31, played 11 AFL matches during the season and brought his career total to 209 games.

He also played in Geelong’s 2022 premiership. He did not appear at any level after the concussion-waiver controversy emerged in early August. In a statement, Kolodjashnij said football had been a significant part of his life and expressed gratitude for his relationships and memories at Geelong.

He said he felt fortunate to have shared success with close friends at the club. Geelong football boss Andrew Mackie praised the defender’s contribution and described him as a reliable player who approached his responsibilities with consistency, resilience and selflessness. Kolodjashnij’s twin brother, Kade, who played for Gold Coast and Melbourne, also retired because of concussion.

The waiver case has raised wider questions about how the AFL will insure players who suffer traumatic brain injuries, although the supplied material does not report any new league policy.